Google+ post by Lee Schumacher on 2013-08-22 20:42:21 UTC!topic/google-appengine-downtime-notify/T_e7lVg7QNY

Wow, they have to take an entire datacentre offline, and they still don’t know what went wrong. (This was Tuesday, 25 June 2013. So, not Friday’s Google-wide outage, which remains unexplained, I think.)

Taking an entire DC offline is not terribly unusual at Google. But I can sympathize with not being able to find a root cause for a failure :frowning: